硅酸盐通报2012，Vol.31Issue(3)：697-701,5.
酚醛树脂热分解残留碳对气压烧结氮化硅陶瓷材料的影响
Effect of Residual Carbon from PR Thermal Decomposition on Silicon Nitride Sintered by GPS
茹敏朝 1张哲 1曾俐 1徐鹏 1陈常青1
作者信息
- 1. 北京中材人工晶体研究院有限公司,北京100018
- 折叠
摘要
Abstract
Silicon nitride ceramics were obtained by gas press sintering (GPS) with PR, and effect of residual carbon from PR thermal decomposition on pore distribution, microstructure and mechanical properties of silicon nitride was studied. The results show that; the residual carbon from PR thermal decomposition decreases relative density, flexural strength and fracture toughness, but the pore became large and more. The reason is that, residual carbon changes the composition of liquid phase as a component, promotes Y2SiA105N and Al8SiC7 crystals phase precipitating from glass phase, affect the glass phase distribution among silicon nitride grains, result in large grains and micro-pores formed.v关键词
氮化硅/残留碳/力学性能/微观组织Key words
silicon nitride/residual carbon/mechanical properties/microstructure分类
信息技术与安全科学引用本文复制引用
茹敏朝,张哲,曾俐,徐鹏,陈常青..酚醛树脂热分解残留碳对气压烧结氮化硅陶瓷材料的影响[J].硅酸盐通报,2012,31(3):697-701,5.
